It dawned on me that many tree leaves are shared in one form or another. Mine get blown over the wall on to the road and into neighbors gardens. The ones that are collected and bagged to make leaf mold are shared with worms and micro organisms in the circle of life. Those under hedges do more good than harm.
Municipal trees are planted in public spaces and a careful selection of species can produce wonderful autumn colours and vibrant spring shoots. Young children get an early hands on experience of nature if they collect fallen leaves. A bit of encouragement and sharing of adult knowledge may engender a life times interest.